CD Skripsi
Kajian Pemanfaatan Limbah Fly Ash Dan Bottom Ash Pada Konstruksi Lapisan Perkerasan Subbase Jalan
ABSTRACT
Fly ash and bottom ash (FABA) is one of the residues produced from the coal
burning process which is included in hazardous and toxic waste. However, the
content of FABA is one reason for the utilization of the waste has been used. The
purpose of this study was to determine the utilization of fly ash and bottom ash in
the subbase on the carrying capacity of the road and with the appropriate
proportions to optimize profit utilization. This research is based on laboratory
testing by testing the CBR of immersion by the 2018 Bina Marga standard. The
subbase layer mixture was made in four variations. Variation I was without fly ash
and bottom ash. In variations II and III fly ash and bottom ash were used as
substitutes, and in variation IV fly ash and bottom ash were used as additives.
Variation I with 0% fly ash and bottom ash content resulted in a CBR value of
64%. Variation II and variation III with 22% and 25% fly ash and bottom ash
content resulted in CBR values of 93% and 84%. Variation IV with 25% fly ash
and bottom ash content results in a CBR value of 73% so that all CBR values are
fulfilled on the 2018 Bina Marga standard and fly ash and bottom ash are suitable
for use in the mixture of road pavement layers.
Keywords: Fly ash, Bottom ash, CBR, Subbase.
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